Grade 8-12 
Mathematics 
(Algebra I) 
Standard 20

Students use the quadratic formula to find the
roots of a second degree polynomial and to
solve quadratic equations.

 

Resources
Lesson Plans
Assessments

Algebra 1  
An Integrated Approach, Larson/Kanold/Stiff, 
2000 Edition,  
D.C. Heath and Company 

Section References 

9.4 The Quadratic Formula 

9.5 Problem Solving  
Using the Discriminant 

Video 

Zeroes and Roots 
(Quadratics Series),  
TV Ontario 1993 
10 minute video 

Specific Textbook  
Web Sites 

http://www.glencoe.com/ 
sec/math/prealg/mathnet/ 

http://www.eduplace.com/ 
links/ 

http://www.eduplace.com/ 

http://www.hmco.com/ 
college/mathematics/ 
index.html 

http://www.mcdougallittell. 
com/ 

http://www.hmco.com/ 

http://www.SRA-4KIDS.com/ 

General Math  
Reference Sites 

http://www.learner.org/ 
sami/view-category.php3 
?category=math 

http://www.score.k12.ca.us/ 

http://henson.austin.apple. 
com/edres/curric.shtml 

http://school.discovery.com/ 
schrockguide/index.html 

http://www.EDsOasis.org/ 

http://www.math.com/ 

http://www.nea.org/grants/ 
free.html 

http://www.wcom.com/ 
marcopolo/ 

http://www.udel.edu/sine/ 

http://dewey.chs.chico.k12. 
ca.us/math.html 

Free Stuff 

http://www.nea.org/ 
grants/free.html 

State/National Math  
Ed Organizations 

http://www.nctm.org/ 

http://www.cde.ca.gov/ 

Calif. Dept. of Ed. Standards, Assessment, Ed. Reference. 

Calculator Reference Site 
http://www.ti.com/ 
calc/docs/calchome.html 



Previously Published Data 

1.) Given a variety of equations, students will substitute values into the appropriate terms of the quadratic formula. 


2.) Given equations in non-standard form, students will re-write the equations in the correct form and solve according to the quadratic formula. 
3.) Students will find the roots of a variety of quadratic equations.
 

Previously Published Data 

1.) Students will solve several quadratic equations using the quadratic formula. They will graph the equations to see if their solutions are correct. 


2.) Students will write a step-by-step solution of how to solve equations using the quadratic formula.